In Wisconsin, the best times to apply weed and feed are:
- Late May (around Memorial Day) : This is when the lawn is waking up from winter dormancy, and weeds are just starting to sprout. Applying weed and feed now targets early weeds and provides nutrients to help your grass grow strong after winter.
- Early September to early October (around Labor Day) : This fall period is ideal for targeting perennial weeds and strengthening the lawn’s roots to prepare for winter.
It is important to avoid applying weed and feed during the hot summer months to prevent lawn burn and during winter because the grass is dormant and the ground may be frozen. For the best results, apply weed and feed when the lawn is moist, avoid rain 24 to 48 hours after application, and follow product instructions carefully. Typically, applications are done twice a year—once in spring and once in fall.
